Can I get a V3 API key to use with my external app or watch?

Unfortunately, API V3 is no longer available for sign up and the last of the existing customers are being migrated to V4. V4 provides a much more robust infrastructure and improved weather models that drive it and we strongly recommend integrating with V4.

If you are trying to use a 3rd party weather app that instructed you to get our V3 API key, we suggest you contact the app developer and ask them to update their code to our V4 platform.